<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>响应式</title>
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <link rel="stylesheet" href="css/index.css">
</head>
<body>
    <div class="container">
        <div class="col">网页的左边ooo</div>
        <div class="col">网页的中间dd</div>
        <div class="col">网页的右边dff</div>
    </div>
</body>
</html>
  git config --global user.email "1726203416@qq.com"
  git config --global user.name "wanghongjian"
